642750

Information

• Patent Grant
• 642750

• References
• Source

• Patent Number

  642,750

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1900
  125 years ago

• CPC

  • G01B3/20 - Slide gauges
  • Y10S33/16 - Clips and rafters

• US Classifications

  • 033 - Geometrical instruments